US6464921B1 - Method for manufacturing a tube shoulder - Google Patents

Method for manufacturing a tube shoulder Download PDF

Info

Publication number
US6464921B1
US6464921B1 US09/505,815 US50581500A US6464921B1 US 6464921 B1 US6464921 B1 US 6464921B1 US 50581500 A US50581500 A US 50581500A US 6464921 B1 US6464921 B1 US 6464921B1
Authority
US
United States
Prior art keywords
material component
tube
cavity
tube shoulder
barrier layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US09/505,815
Other languages
English (en)
Inventor
Rainer Armbruster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foboha GmbH
Original Assignee
Foboha GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foboha GmbH filed Critical Foboha GmbH
Assigned to FOBOHA GMBH reassignment FOBOHA GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ARMBRUSTER RAINER
Priority to US10/209,013 priority Critical patent/US20020185778A1/en
Application granted granted Critical
Publication of US6464921B1 publication Critical patent/US6464921B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/02—Body construction
    • B65D35/12—Connections between body and closure-receiving bush
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1615—The materials being injected at different moulding stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/20—Flexible squeeze tubes, e.g. for cosmetics

Definitions

  • the present invention relates to a multilayer tube shoulder for a tube and to a method for the manufacture of such tube shoulders according to the preambles of the independent claims.
  • tube shoulders made from these materials, undesired substances diffuse or pass out of the tube into the environment or pass from the environment into the tube, which is prejudicial to the substance introduced into the tube.
  • tube shoulders In order to prevent this harmful permeability, tube shoulders generally have a two-layer structure, comprising an outer, shaping layer and an inner barrier layer.
  • the material generally used for the shaping layer is polyethylene (PE), while the barrier layer material is polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the present invention is directed toward a tube shoulder and method for making a tube shoulder that avoids the disadvantages discussed in conjunction with the aforementioned prior art.
  • drastic material reductions are possible and, on the other hand, the manufacturing time is greatly reduced and optimized, leading to a better utilization of the invested resources.
  • the invention has two vital advantages. On the one hand the material consumption of a two-layer tube shoulder is massively reduced and on the other the cycle time during manufacture is drastically decreased.
  • the invention disclosed here is also suitable for integrally joining a tube body to the tube shoulder in a first step.
  • This tube body can be supplied as an extraneous part from the outside to the processing operation.
  • This additional step advantageously takes place in a further cavity or is combined with one of the steps in which the first or second material component is produced.
  • FIG. 1 Diagrammatically a preferred embodiment of a tube shoulder in a perspective sectional view.
  • FIG. 2 Diagrammatically the sequence of a tube shoulder manufacturing process.
  • FIG. 1 shows a preferred embodiment of a tube shoulder 1 in a perspective sectional view.
  • the tube shoulder 1 comprises an outer layer 2 and an inner barrier layer 3 .
  • the outer layer 2 is of polyethylene (PE) and the barrier layer 3 of polyethylene terephthalate (PET).
  • PET polyethylene terephthalate
  • the outer layer 2 is primarily used for shaping the tube shoulder 1 and the barrier layer 3 serves to seal the tube shoulder 1 .
  • the two materials of the outer layer 2 and barrier layer 3 are typically not meltable or fusible with one another.
  • the outer layer 2 engages round the barrier layer 3 , here at a lower face 4 and an upper face 5 , so that a large-area, positive connection is formed between the outer layer 2 and the barrier layer 3 .
  • the use of the method described relative to FIG. 2 is made possible by the represented embodiment of the tube shoulder 1 as a result of the inventive construction, which deliberately avoids small undercuts and the like.
  • FIG. 2 a diagrammatically shows a sectional representation through an injection mould 10 for the manufacture of the tube shoulder 1 according to FIG. 1 .
  • the injection mould 10 here comprises a base body 11 , which has two openings 20 and 21 .
  • Two, here identical, rotationally symmetrical cores 12 . 1 and 12 . 2 and two identical, annular release elements 14 . 1 and 14 . 2 engage from below and in sealing manner in the openings 20 and 21 , so as to form a first cavity 22 and a second cavity 23 .
  • the first cavity 22 corresponds to the negative of a barrier layer 3 according to FIG. 1 .
  • the second cavity 23 corresponds to the negative of a barrier layer 3 and an outer layer 2 .
  • molten plastic of a first material component preferably PET
  • a first material component preferably PET
  • the release element 14 is so displaced (arrow 37 ), that there is a release of a lower surface 4 of the barrier layer 3 .
  • the core 12 , release element 14 and barrier layer 3 are subsequently sealingly inserted into the second opening 21 of the injection mould 10 (FIG. 2 a ).
  • This is diagrammatically represented by an arrow 31 .
  • a second runner 26 a second material component is injected round the released barrier layer 3 formed by the first material component that a strong, mechanical connection is formed.
  • At least one face preferably an annular face 4 , 5 (cf. FIG. 1) serves as a mechanical stop.
  • the second material component forms an outer layer 2 according to FIG. 1 .
  • the entire sequence is represented here in a highly diagrammatic manner and is in practice advantageously incorporated into a reversing mould with typically two cavities 20 and two cores 14 . 1 and 14 . 2 .
  • the two cores 14 . 1 and 14 . 2 are simultaneously used.
  • the barrier layer can be made very thin, because the core 14 acts as a shaping support.
  • the release element 14 additionally serves as an ejection aid for the finished tube shoulder 1 .
  • the faces of the release elements 14 . 1 , 14 . 2 and the cavities 22 , 23 which are in functional combination with one another, are advantageously conically constructed.
  • the here described, very rapidly performed manufacturing process is additionally, and as a function of the dimensions of the tube shoulder 1 to be manufactured, controlled by the cooling of the core 14 and the injection mould 1 .
  • Advantageously gas or liquid cooling systems are used.
  • the barrier layer 3 is so positioned in the vicinity of an outlet port 6 (cf. FIG. 1) that it is visible from the outside for the user.
  • the outlet port 6 can also have a non-circular cross-section, so that a pattern can be impressed on the filled material passing out.
US09/505,815 1999-02-18 2000-02-17 Method for manufacturing a tube shoulder Expired - Fee Related US6464921B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/209,013 US20020185778A1 (en) 1999-02-18 2002-07-31 Tube shoulder and method for its manufacture

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99103183 1999-02-18
EP99103183A EP1033318B1 (de) 1999-02-18 1999-02-18 Tubenschulter und Verfahren zu ihrer Herstellung

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/209,013 Division US20020185778A1 (en) 1999-02-18 2002-07-31 Tube shoulder and method for its manufacture

Publications (1)

Publication Number Publication Date
US6464921B1 true US6464921B1 (en) 2002-10-15

Family

ID=8237579

Family Applications (2)

Application Number Title Priority Date Filing Date
US09/505,815 Expired - Fee Related US6464921B1 (en) 1999-02-18 2000-02-17 Method for manufacturing a tube shoulder
US10/209,013 Abandoned US20020185778A1 (en) 1999-02-18 2002-07-31 Tube shoulder and method for its manufacture

Family Applications After (1)

Application Number Title Priority Date Filing Date
US10/209,013 Abandoned US20020185778A1 (en) 1999-02-18 2002-07-31 Tube shoulder and method for its manufacture

Country Status (9)

Country Link
US (2) US6464921B1 (es)
EP (1) EP1033318B1 (es)
AT (1) ATE224326T1 (es)
CA (1) CA2299214A1 (es)
DE (1) DE59902742D1 (es)
DK (1) DK1033318T3 (es)
ES (1) ES2186262T3 (es)
HK (1) HK1032573A1 (es)
PT (1) PT1033318E (es)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1632328A1 (en) * 2003-06-12 2006-03-08 Toyo Tire & Rubber Co., Ltd . Method and device for manufacturing bush of double-layer structure
US20070284784A1 (en) * 2006-06-13 2007-12-13 Electroform Company, Inc. Method and apparatus for molding and assembling plural-part plastic assemblies
EP2500157A1 (en) 2011-03-18 2012-09-19 Albéa Services Pre-formed tube end piece
US8394342B2 (en) 2008-07-21 2013-03-12 Becton, Dickinson And Company Density phase separation device
US20140134366A1 (en) * 2011-06-30 2014-05-15 Foboha Gmbh Device and method for producing injection-molded parts which comprise different components
US8747781B2 (en) 2008-07-21 2014-06-10 Becton, Dickinson And Company Density phase separation device
US8794452B2 (en) 2009-05-15 2014-08-05 Becton, Dickinson And Company Density phase separation device
US9333445B2 (en) 2008-07-21 2016-05-10 Becton, Dickinson And Company Density phase separation device
US20170120491A1 (en) * 2014-07-28 2017-05-04 Olympus Corporation Manufacturing apparatus for composite optical element and manufacturing method for composite optical element
US9694359B2 (en) 2014-11-13 2017-07-04 Becton, Dickinson And Company Mechanical separator for a biological fluid

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10319756B4 (de) * 2003-04-30 2005-05-25 A. Raymond & Cie Verbindungssysteme mit wenigstens einem inneren und einem äußeren Kunststoffteil
DE10344179A1 (de) * 2003-09-24 2005-04-21 Plast Competence Ct Ag Zofinge Verfahren zur Herstellung eines Behälters mit Wiederverschluss
CH706993A1 (en) 2012-09-19 2014-03-31 Alpla Werke Injection molding apparatus and method for producing a tube head, and tube head.
US10226315B2 (en) 2015-06-30 2019-03-12 Braun Gmbh Multi-component plastic housing
US10059046B2 (en) * 2015-06-30 2018-08-28 Braun Gmbh Process for making a multi-component plastic housing
US10583625B2 (en) 2015-06-30 2020-03-10 Braun Gmbh Plurality of mass-produced multi-component plastic housings
EP3703923A4 (en) * 2017-11-03 2021-08-18 Kimpai Lamitube Co., Ltd. IN-MOLD ARRANGEMENT METHOD OF TUBULAR SHOULDER FOR PIPE CONTAINER

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186601A (en) * 1964-07-07 1965-06-01 American Can Co Leakproof dispensing tube
GB1118632A (en) 1964-07-13 1968-07-03 American Can Co Collapsible dispensing container
US3465917A (en) * 1966-06-29 1969-09-09 Taisei Kako Co Method for the production of plastic tubes
US3565293A (en) 1968-03-20 1971-02-23 American Can Co Collapsible tube
US3988413A (en) * 1975-02-24 1976-10-26 American Can Company Method of molding a headpiece on a tubular body
US4185757A (en) 1977-07-08 1980-01-29 Schultz Robert S Collapsible dispensing tube having an anchored barrier member
US4275864A (en) 1980-06-12 1981-06-30 Richards Les W Method and system for cooling a mold
US4492548A (en) * 1980-02-15 1985-01-08 Rjr Archer, Inc. Machinery for molding headpiece for collapsible tube including a chilled wiper
EP0130239A1 (de) 1983-06-28 1985-01-09 Automation Industrielle SA Zusammendrückbarer Behältervorformling und Verfahren zu dessen Herstellung
US5030406A (en) * 1989-08-14 1991-07-09 Sorensen Jens Ole Sequentially injected multi-component shuttle-stack-molding

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700513A (en) * 1969-09-18 1972-10-24 Spiess C F & Sohn Method of making tube
US3914081A (en) * 1969-12-29 1975-10-21 Katashi Aoki Apparatus for injection molding two-colored products
US4854484A (en) * 1987-01-28 1989-08-08 Chesebrough-Pond's Inc. Viscous product dispenser
CH682480A5 (de) * 1991-01-21 1993-09-30 Maegerle Karl Lizenz Verpackungstube.
US5800770A (en) * 1994-04-15 1998-09-01 Owens-Brockway Plastic Products Inc. Method of making a flexible tube
US5702033A (en) * 1995-06-07 1997-12-30 Continental Plastic Containers, Inc. Adjoined dual-tube dispenser
AR002773A1 (es) * 1995-07-07 1998-04-29 Continental Pet Technologies Metodo para el moldeado por inyeccion de un articulo plastico y aparato para llevarlo a cabo.
US5836484A (en) * 1996-10-03 1998-11-17 Gerber; Bernard R. Contamination-safe multiple-dose dispensing cartridge for flowable materials
US6322738B1 (en) * 1997-07-24 2001-11-27 Husky Injection Molding Systems Ltd. Method of injection over-molding articles
US5941420A (en) * 1997-08-06 1999-08-24 Colgate-Palmolive Company Multichamber container dispensing orifices

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186601A (en) * 1964-07-07 1965-06-01 American Can Co Leakproof dispensing tube
GB1118632A (en) 1964-07-13 1968-07-03 American Can Co Collapsible dispensing container
US3465917A (en) * 1966-06-29 1969-09-09 Taisei Kako Co Method for the production of plastic tubes
US3565293A (en) 1968-03-20 1971-02-23 American Can Co Collapsible tube
US3988413A (en) * 1975-02-24 1976-10-26 American Can Company Method of molding a headpiece on a tubular body
US4185757A (en) 1977-07-08 1980-01-29 Schultz Robert S Collapsible dispensing tube having an anchored barrier member
US4492548A (en) * 1980-02-15 1985-01-08 Rjr Archer, Inc. Machinery for molding headpiece for collapsible tube including a chilled wiper
US4275864A (en) 1980-06-12 1981-06-30 Richards Les W Method and system for cooling a mold
EP0130239A1 (de) 1983-06-28 1985-01-09 Automation Industrielle SA Zusammendrückbarer Behältervorformling und Verfahren zu dessen Herstellung
US5030406A (en) * 1989-08-14 1991-07-09 Sorensen Jens Ole Sequentially injected multi-component shuttle-stack-molding

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1632328A1 (en) * 2003-06-12 2006-03-08 Toyo Tire & Rubber Co., Ltd . Method and device for manufacturing bush of double-layer structure
EP1632328A4 (en) * 2003-06-12 2006-07-12 Toyo Tire & Rubber Co METHOD AND DEVICE FOR PRODUCING A SOCKET WITH DOUBLE LAYER STRUCTURE
US7951322B2 (en) 2006-06-13 2011-05-31 Electroform Company Method and apparatus for molding and assembling plural-part plastic assemblies
US20110206796A1 (en) * 2006-06-13 2011-08-25 Electroform Company, Inc. Method and Apparatus for Molding and Assembling Plural-Part Plastic Assemblies
US8113820B2 (en) 2006-06-13 2012-02-14 Electroform Company, Inc. Method and apparatus for molding and assembling plural-part plastic assemblies
US20070284784A1 (en) * 2006-06-13 2007-12-13 Electroform Company, Inc. Method and apparatus for molding and assembling plural-part plastic assemblies
US9339741B2 (en) 2008-07-21 2016-05-17 Becton, Dickinson And Company Density phase separation device
US10350591B2 (en) 2008-07-21 2019-07-16 Becton, Dickinson And Company Density phase separation device
US9933344B2 (en) 2008-07-21 2018-04-03 Becton, Dickinson And Company Density phase separation device
US8394342B2 (en) 2008-07-21 2013-03-12 Becton, Dickinson And Company Density phase separation device
US8747781B2 (en) 2008-07-21 2014-06-10 Becton, Dickinson And Company Density phase separation device
US9714890B2 (en) 2008-07-21 2017-07-25 Becton, Dickinson And Company Density phase separation device
US9700886B2 (en) 2008-07-21 2017-07-11 Becton, Dickinson And Company Density phase separation device
US9452427B2 (en) 2008-07-21 2016-09-27 Becton, Dickinson And Company Density phase separation device
US9333445B2 (en) 2008-07-21 2016-05-10 Becton, Dickinson And Company Density phase separation device
US9364828B2 (en) 2009-05-15 2016-06-14 Becton, Dickinson And Company Density phase separation device
US9802189B2 (en) 2009-05-15 2017-10-31 Becton, Dickinson And Company Density phase separation device
US9079123B2 (en) 2009-05-15 2015-07-14 Becton, Dickinson And Company Density phase separation device
US11786895B2 (en) 2009-05-15 2023-10-17 Becton, Dickinson And Company Density phase separation device
US11351535B2 (en) 2009-05-15 2022-06-07 Becton, Dickinson And Company Density phase separation device
US8998000B2 (en) 2009-05-15 2015-04-07 Becton, Dickinson And Company Density phase separation device
US8794452B2 (en) 2009-05-15 2014-08-05 Becton, Dickinson And Company Density phase separation device
US10807088B2 (en) 2009-05-15 2020-10-20 Becton, Dickinson And Company Density phase separation device
US9731290B2 (en) 2009-05-15 2017-08-15 Becton, Dickinson And Company Density phase separation device
US10456782B2 (en) 2009-05-15 2019-10-29 Becton, Dickinson And Company Density phase separation device
US9919309B2 (en) 2009-05-15 2018-03-20 Becton, Dickinson And Company Density phase separation device
US9919307B2 (en) 2009-05-15 2018-03-20 Becton, Dickinson And Company Density phase separation device
US9919308B2 (en) 2009-05-15 2018-03-20 Becton, Dickinson And Company Density phase separation device
US10413898B2 (en) 2009-05-15 2019-09-17 Becton, Dickinson And Company Density phase separation device
US10343157B2 (en) 2009-05-15 2019-07-09 Becton, Dickinson And Company Density phase separation device
US10376879B2 (en) 2009-05-15 2019-08-13 Becton, Dickinson And Company Density phase separation device
EP2500157A1 (en) 2011-03-18 2012-09-19 Albéa Services Pre-formed tube end piece
WO2012126849A1 (en) 2011-03-18 2012-09-27 Albea Services Pre-formed head of a container
US20140134366A1 (en) * 2011-06-30 2014-05-15 Foboha Gmbh Device and method for producing injection-molded parts which comprise different components
US9718227B2 (en) * 2011-06-30 2017-08-01 Foboha Gmbh Device and method for producing injection-molded parts which comprise different components
US20170120491A1 (en) * 2014-07-28 2017-05-04 Olympus Corporation Manufacturing apparatus for composite optical element and manufacturing method for composite optical element
US9694359B2 (en) 2014-11-13 2017-07-04 Becton, Dickinson And Company Mechanical separator for a biological fluid

Also Published As

Publication number Publication date
EP1033318B1 (de) 2002-09-18
ES2186262T3 (es) 2003-05-01
US20020185778A1 (en) 2002-12-12
EP1033318A1 (de) 2000-09-06
DE59902742D1 (de) 2002-10-24
ATE224326T1 (de) 2002-10-15
DK1033318T3 (da) 2003-01-06
HK1032573A1 (en) 2001-07-27
PT1033318E (pt) 2003-02-28
CA2299214A1 (en) 2000-08-18

Similar Documents

Publication Publication Date Title
US6464921B1 (en) Method for manufacturing a tube shoulder
US5705112A (en) Procedure for the production of an assembled object
US4495125A (en) Method for forming a synthetic-resin-made container
CA2228678A1 (en) Method and apparatus for making herringbone gears and pumps incorporating the same
CA2330554C (en) Insert-bonded cylindrical articles, and a molding method and a molding apparatus therefor technical field to which the invention pertains
US5045268A (en) Cross-lamination injection molding
ES8503557A1 (es) Un metodo para moldear por inyeccion un parison compuesto
EP0556323A1 (en) METHOD FOR APPLYING GAS FOR MOLDING PLASTIC ARTICLES TO IMPROVE THE SURFACE QUALITY.
SE8900368A (es)
JPS6176333A (ja) 射出成形による成形体相互の結合方法
US6824726B2 (en) Cold runner system for sandwich molding
JP2908839B2 (ja) 複合製品の射出成形方法
JP2688400B2 (ja) 中空体の成形方法及び中空体
JP2003245944A (ja) 合成樹脂製の多層中空体の射出成形方法
US7892612B1 (en) Insert-bonded cylindrical articles, and a molding method and a molding apparatus therefor technical field to which the invention pertains
USRE37506E1 (en) Method for molding article in plurality of colors
JPH09104044A (ja) 表面に凹部を有する成形品の射出成形方法
KR0185787B1 (ko) 헤드부와 몸체부가 일체로 사출 성형되는 플라스틱 튜브제품 및 그 제조장치
JP2874835B2 (ja) ガス注入射出成形用金型及びそれを用いるガス注入射出成形法
JPH06143341A (ja) 三層構造成形品の射出成形方法およびその金型
JPH056099Y2 (es)
JPH03284915A (ja) 中空樹脂成形品の製造方法
CN114103005A (zh) 厚壁光学元件三次成型注塑模具及成型方法
JPH09109182A (ja) レンズホルダの成形方法および装置
JPH0857887A (ja) 中空樹脂成形品の製造方法

Legal Events

Date Code Title Description
AS Assignment

Owner name: FOBOHA GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ARMBRUSTER RAINER;REEL/FRAME:010853/0247

Effective date: 20000519

CC Certificate of correction
FEPP Fee payment procedure

Free format text: PAYER NUMBER DE-ASSIGNED (ORIGINAL EVENT CODE: RMPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FEPP Fee payment procedure

Free format text: PAT HOLDER NO LONGER CLAIMS SMALL ENTITY STATUS, ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: STOL); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20141015